I have a pair of Mcustas. Model #'s MC1(big'un) and MC5(little'un)
Anyway, I have the 3.25" blade model with Chinese Quince Burl scales and damascus blade with VG-10 core. A very nice knife for the price. The pivot pin and thumbstud are heat blued from the look of them and the pocket clip is actually integral with the stainless steel liner. They took the liner, slotted it, shaped it and bent it over. This pretty much eliminates the possibility of removing it unless you want it removed on a permanent basis but it also seems to be quite sturdy and makes this a deep pocket carry folder.
The other one is the Cocobolo scaled gent's knife also in damascus with VG-10 core, 2.75" in blade length, and boasts the same integral, deep pocket carry clip setup. I'm finding I don't really care for the way the clip was cut and shaped as I find it rather difficult to remove from my pocket. It's an open slot on the top and does not give you much to get hold of to extract the knife from the pocket. :grumpy:

Aside from that little caveat, it still carries well in the pocket. I can hardly tell it's in my pocket carrying it like a good ol' fashioned pocket knife.
Both folders have heavily sculpted scales that look a bit odd to some but make gripping the knives nothing short of sweet. At least to me...YMMV of course. Both have slot screw type pivot pins and torx fastener construction.
I feel like I got my money's worth and maybe more than that with the larger model. It's big enough to EDC, and good looking enough to elicit ooh's and aahhh's from people who see it.
Both knives came hair splitting sharp and are very useable.
Melike Mcusta...am seriously thinking about getting more of'em.